| Form N-CSR Cover | 12 Months Ended |
| Nov. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | AB GLOBAL RISK ALLOCATION FUND, INC. |
| Entity Central Index Key | 0000069752 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Nov. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | AB GLOBAL RISK ALLOCATION FUND, INC. |
| Entity Central Index Key | 0000069752 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| C000027570 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Advisor Class |
| Trading Symbol | CBSYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Global Risk Allocation Fund (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CBSYX-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CBSYX-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Advisor Class $122 1.13% |
| Expenses Paid, Amount | $ 122 |
| Expense Ratio, Percent | 1.13% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund underperformed its primary benchmark, the Morgan Stanley Capital International (“MSCI”) World Index (net), and its blended benchmark, a 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index, before sales charges. The Fund is strategically diversified in multi-asset exposures and, therefore, has a lower exposure to global equities and larger exposures to both interest-rate-sensitive assets, such as global bonds, and inflation-sensitive assets, such as commodities, than both the primary and blended benchmarks. As global equities outperformed other asset classes over the period, the relative underweight detracted. During the 12-month period, the Fund used derivatives for hedging and investment purposes. Futures, credit default and interest rate swaps, currency forwards and written options added to absolute returns, while purchase options detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | Advisor Class MSCI World Index (net) Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index Bloomberg Global Aggregate Bond Index 11/14 $10,000 $10,000 $10,000 $10,000 11/15 $9,773 $9,928 $9,803 $9,567 11/16 $10,107 $10,240 $10,127 $9,864 11/17 $11,373 $12,663 $11,803 $10,508 11/18 $10,966 $12,680 $11,693 $10,212 11/19 $11,873 $14,523 $13,142 $11,066 11/20 $13,022 $16,632 $14,812 $11,993 11/21 $14,804 $20,254 $16,472 $11,598 11/22 $14,140 $18,055 $14,321 $9,648 11/23 $14,006 $20,399 $15,554 $9,845 11/24 $16,123 $26,075 $18,370 $10,302 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Advisor Class 15.12 % 6.31 % 4.89 % MSCI World Index (net) 27.83 % 12.42 % 10.06 % Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 18.10 % 6.93 % 6.27 % Bloomberg Global Aggregate Bond Index 4.64 % - % 0.30 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 177,524,467 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 1,043,945 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $177,524,467 # of Portfolio Holdings 454 Portfolio Turnover Rate 38% Total Advisory Fees Paid $1,043,945 |
| Holdings [Text Block] | Sector Breakdown Value Value Inflation-Linked Securities 23.5% Funds and Investment Trusts 22.3% Governments - Treasuries 18.1% Financials 1.9% Industrials 1.1% Health Care 1.1% Consumer Staples 0.9% Utilities 0.9% Materials 0.8% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Energy 0.6% Others 1.7% Short-Term Investments 21.0% Other assets less liabilities 4.6% Country Breakdown Value Value United States 46.9% United Kingdom 1.8% France 1.2% Switzerland 1.1% Germany 1.0% Mexico 0.7% Denmark 0.6% Sweden 0.5% Italy 0.5% Netherlands 0.5% Spain 0.4% Norway 0.2% Finland 0.2% Others 0.7% Short-Term Investments 39.1% Other assets less liabilities 4.6% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Vanguard S&P 500 ETF $25,137,699 14.1 % U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $19,034,686 10.7 % U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $15,523,982 8.8 % U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $7,122,087 4.0 % iShares Core MSCI Emerging Markets ETF $5,641,723 3.2 % Vanguard Real Estate ETF $2,633,633 1.5 % Invesco S&P 500 Equal Weight ETF $2,570,394 1.4 % iShares MSCI Emerging Markets ex China ETF $2,160,598 1.2 % Mexico Government International Bond, 4.13%, due 01/21/26 $1,164,094 0.7 % Vanguard Global ex-U.S. Real Estate ETF $1,060,940 0.6 % Total $82,049,836 46.2 % |
| Material Fund Change [Text Block] | |
| C000027567 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Class A |
| Trading Symbol | CABNX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Global Risk Allocation Fund (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CABNX-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CABNX-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $149 1.39% |
| Expenses Paid, Amount | $ 149 |
| Expense Ratio, Percent | 1.39% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund underperformed its primary benchmark, the Morgan Stanley Capital International (“MSCI”) World Index (net), and its blended benchmark, a 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index, before sales charges. The Fund is strategically diversified in multi-asset exposures and, therefore, has a lower exposure to global equities and larger exposures to both interest-rate-sensitive assets, such as global bonds, and inflation-sensitive assets, such as commodities, than both the primary and blended benchmarks. As global equities outperformed other asset classes over the period, the relative underweight detracted. During the 12-month period, the Fund used derivatives for hedging and investment purposes. Futures, credit default and interest rate swaps, currency forwards and written options added to absolute returns, while purchase options detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | Class A (with sales charges) MSCI World Index (net) Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index Bloomberg Global Aggregate Bond Index 11/14 $9,574 $10,000 $10,000 $10,000 11/15 $9,329 $9,928 $9,803 $9,567 11/16 $9,628 $10,240 $10,127 $9,864 11/17 $10,804 $12,663 $11,803 $10,508 11/18 $10,392 $12,680 $11,693 $10,212 11/19 $11,223 $14,523 $13,142 $11,066 11/20 $12,276 $16,632 $14,812 $11,993 11/21 $13,928 $20,254 $16,472 $11,598 11/22 $13,261 $18,055 $14,321 $9,648 11/23 $13,102 $20,399 $15,554 $9,845 11/24 $15,046 $26,075 $18,370 $10,302 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class A (without sales charges) 14.84 % 6.04 % 4.62 % Class A (with sales charges) 9.95 % 5.13 % 4.17 % MSCI World Index (net) 27.83 % 12.42 % 10.06 % Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 18.10 % 6.93 % 6.27 % Bloomberg Global Aggregate Bond Index 4.64 % - % 0.30 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 177,524,467 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 1,043,945 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $177,524,467 # of Portfolio Holdings 454 Portfolio Turnover Rate 38% Total Advisory Fees Paid $1,043,945 |
| Holdings [Text Block] | Sector Breakdown Value Value Inflation-Linked Securities 23.5% Funds and Investment Trusts 22.3% Governments - Treasuries 18.1% Financials 1.9% Industrials 1.1% Health Care 1.1% Consumer Staples 0.9% Utilities 0.9% Materials 0.8% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Energy 0.6% Others 1.7% Short-Term Investments 21.0% Other assets less liabilities 4.6% Country Breakdown Value Value United States 46.9% United Kingdom 1.8% France 1.2% Switzerland 1.1% Germany 1.0% Mexico 0.7% Denmark 0.6% Sweden 0.5% Italy 0.5% Netherlands 0.5% Spain 0.4% Norway 0.2% Finland 0.2% Others 0.7% Short-Term Investments 39.1% Other assets less liabilities 4.6% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Vanguard S&P 500 ETF $25,137,699 14.1 % U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $19,034,686 10.7 % U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $15,523,982 8.8 % U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $7,122,087 4.0 % iShares Core MSCI Emerging Markets ETF $5,641,723 3.2 % Vanguard Real Estate ETF $2,633,633 1.5 % Invesco S&P 500 Equal Weight ETF $2,570,394 1.4 % iShares MSCI Emerging Markets ex China ETF $2,160,598 1.2 % Mexico Government International Bond, 4.13%, due 01/21/26 $1,164,094 0.7 % Vanguard Global ex-U.S. Real Estate ETF $1,060,940 0.6 % Total $82,049,836 46.2 % |
| Material Fund Change [Text Block] | |
| C000027569 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Class C |
| Trading Symbol | CBACX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Global Risk Allocation Fund (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CBACX-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CBACX-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $230 2.15% |
| Expenses Paid, Amount | $ 230 |
| Expense Ratio, Percent | 2.15% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund underperformed its primary benchmark, the Morgan Stanley Capital International (“MSCI”) World Index (net), and its blended benchmark, a 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index, before sales charges. The Fund is strategically diversified in multi-asset exposures and, therefore, has a lower exposure to global equities and larger exposures to both interest-rate-sensitive assets, such as global bonds, and inflation-sensitive assets, such as commodities, than both the primary and blended benchmarks. As global equities outperformed other asset classes over the period, the relative underweight detracted. During the 12-month period, the Fund used derivatives for hedging and investment purposes. Futures, credit default and interest rate swaps, currency forwards and written options added to absolute returns, while purchase options detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | Class C MSCI World Index (net) Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index Bloomberg Global Aggregate Bond Index 11/14 $10,000 $10,000 $10,000 $10,000 11/15 $9,673 $9,928 $9,803 $9,567 11/16 $9,907 $10,240 $10,127 $9,864 11/17 $11,031 $12,663 $11,803 $10,508 11/18 $10,535 $12,680 $11,693 $10,212 11/19 $11,289 $14,523 $13,142 $11,066 11/20 $12,256 $16,632 $14,812 $11,993 11/21 $13,797 $20,254 $16,472 $11,598 11/22 $13,042 $18,055 $14,321 $9,648 11/23 $12,795 $20,399 $15,554 $9,845 11/24 $14,579 $26,075 $18,370 $10,302 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class C (without sales charges) 13.94 % 5.25 % 3.84 % Class C (with sales charges) 12.94 % 5.25 % 3.84 % MSCI World Index (net) 27.83 % 12.42 % 10.06 % Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 18.10 % 6.93 % 6.27 % Bloomberg Global Aggregate Bond Index 4.64 % - % 0.30 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 177,524,467 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 1,043,945 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $177,524,467 # of Portfolio Holdings 454 Portfolio Turnover Rate 38% Total Advisory Fees Paid $1,043,945 |
| Holdings [Text Block] | Sector Breakdown Value Value Inflation-Linked Securities 23.5% Funds and Investment Trusts 22.3% Governments - Treasuries 18.1% Financials 1.9% Industrials 1.1% Health Care 1.1% Consumer Staples 0.9% Utilities 0.9% Materials 0.8% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Energy 0.6% Others 1.7% Short-Term Investments 21.0% Other assets less liabilities 4.6% Country Breakdown Value Value United States 46.9% United Kingdom 1.8% France 1.2% Switzerland 1.1% Germany 1.0% Mexico 0.7% Denmark 0.6% Sweden 0.5% Italy 0.5% Netherlands 0.5% Spain 0.4% Norway 0.2% Finland 0.2% Others 0.7% Short-Term Investments 39.1% Other assets less liabilities 4.6% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Vanguard S&P 500 ETF $25,137,699 14.1 % U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $19,034,686 10.7 % U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $15,523,982 8.8 % U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $7,122,087 4.0 % iShares Core MSCI Emerging Markets ETF $5,641,723 3.2 % Vanguard Real Estate ETF $2,633,633 1.5 % Invesco S&P 500 Equal Weight ETF $2,570,394 1.4 % iShares MSCI Emerging Markets ex China ETF $2,160,598 1.2 % Mexico Government International Bond, 4.13%, due 01/21/26 $1,164,094 0.7 % Vanguard Global ex-U.S. Real Estate ETF $1,060,940 0.6 % Total $82,049,836 46.2 % |
| Material Fund Change [Text Block] | |
| C000027573 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Class I |
| Trading Symbol | CABIX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Global Risk Allocation Fund (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CABIX-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CABIX-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $123 1.14% |
| Expenses Paid, Amount | $ 123 |
| Expense Ratio, Percent | 1.14% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund underperformed its primary benchmark, the Morgan Stanley Capital International (“MSCI”) World Index (net), and its blended benchmark, a 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index, before sales charges. The Fund is strategically diversified in multi-asset exposures and, therefore, has a lower exposure to global equities and larger exposures to both interest-rate-sensitive assets, such as global bonds, and inflation-sensitive assets, such as commodities, than both the primary and blended benchmarks. As global equities outperformed other asset classes over the period, the relative underweight detracted. During the 12-month period, the Fund used derivatives for hedging and investment purposes. Futures, credit default and interest rate swaps, currency forwards and written options added to absolute returns, while purchase options detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | Class I MSCI World Index (net) Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index Bloomberg Global Aggregate Bond Index 11/14 $10,000 $10,000 $10,000 $10,000 11/15 $9,788 $9,928 $9,803 $9,567 11/16 $10,149 $10,240 $10,127 $9,864 11/17 $11,427 $12,663 $11,803 $10,508 11/18 $11,026 $12,680 $11,693 $10,212 11/19 $11,938 $14,523 $13,142 $11,066 11/20 $13,098 $16,632 $14,812 $11,993 11/21 $14,902 $20,254 $16,472 $11,598 11/22 $14,237 $18,055 $14,321 $9,648 11/23 $14,103 $20,399 $15,554 $9,845 11/24 $16,235 $26,075 $18,370 $10,302 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class I 15.12 % 6.34 % 4.97 % MSCI World Index (net) 27.83 % 12.42 % 10.06 % Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 18.10 % 6.93 % 6.27 % Bloomberg Global Aggregate Bond Index 4.64 % - % 0.30 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 177,524,467 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 1,043,945 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $177,524,467 # of Portfolio Holdings 454 Portfolio Turnover Rate 38% Total Advisory Fees Paid $1,043,945 |
| Holdings [Text Block] | Sector Breakdown Value Value Inflation-Linked Securities 23.5% Funds and Investment Trusts 22.3% Governments - Treasuries 18.1% Financials 1.9% Industrials 1.1% Health Care 1.1% Consumer Staples 0.9% Utilities 0.9% Materials 0.8% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Energy 0.6% Others 1.7% Short-Term Investments 21.0% Other assets less liabilities 4.6% Country Breakdown Value Value United States 46.9% United Kingdom 1.8% France 1.2% Switzerland 1.1% Germany 1.0% Mexico 0.7% Denmark 0.6% Sweden 0.5% Italy 0.5% Netherlands 0.5% Spain 0.4% Norway 0.2% Finland 0.2% Others 0.7% Short-Term Investments 39.1% Other assets less liabilities 4.6% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Vanguard S&P 500 ETF $25,137,699 14.1 % U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $19,034,686 10.7 % U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $15,523,982 8.8 % U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $7,122,087 4.0 % iShares Core MSCI Emerging Markets ETF $5,641,723 3.2 % Vanguard Real Estate ETF $2,633,633 1.5 % Invesco S&P 500 Equal Weight ETF $2,570,394 1.4 % iShares MSCI Emerging Markets ex China ETF $2,160,598 1.2 % Mexico Government International Bond, 4.13%, due 01/21/26 $1,164,094 0.7 % Vanguard Global ex-U.S. Real Estate ETF $1,060,940 0.6 % Total $82,049,836 46.2 % |
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | ||||||||||
| Nov. 30, 2024 | Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2021 | Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2018 | Nov. 30, 2017 | Nov. 30, 2016 | Nov. 30, 2015 | Nov. 30, 2014 | |
| C000027570 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Advisor Class | ||||||||||
| Account Value | $ 16,123 | $ 14,006 | $ 14,140 | $ 14,804 | $ 13,022 | $ 11,873 | $ 10,966 | $ 11,373 | $ 10,107 | $ 9,773 | $ 10,000 |
| C000027567 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class A (with sales charges) | ||||||||||
| Account Value | $ 15,046 | 13,102 | 13,261 | 13,928 | 12,276 | 11,223 | 10,392 | 10,804 | 9,628 | 9,329 | 9,574 |
| C000027569 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class C | ||||||||||
| Account Value | $ 14,579 | 12,795 | 13,042 | 13,797 | 12,256 | 11,289 | 10,535 | 11,031 | 9,907 | 9,673 | 10,000 |
| C000027573 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class I | ||||||||||
| Account Value | $ 16,235 | 14,103 | 14,237 | 14,902 | 13,098 | 11,938 | 11,026 | 11,427 | 10,149 | 9,788 | 10,000 |
| AllianceBernstein Index: MSCI World Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||||||||||
| Account Value | $ 26,075 | 20,399 | 18,055 | 20,254 | 16,632 | 14,523 | 12,680 | 12,663 | 10,240 | 9,928 | 10,000 |
| AllianceBernstein Index: MSCI World Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||||||||||
| Account Value | $ 26,075 | 20,399 | 18,055 | 20,254 | 16,632 | 14,523 | 12,680 | 12,663 | 10,240 | 9,928 | 10,000 |
| AllianceBernstein Index: MSCI World Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||||||||||
| Account Value | $ 26,075 | 20,399 | 18,055 | 20,254 | 16,632 | 14,523 | 12,680 | 12,663 | 10,240 | 9,928 | 10,000 |
| AllianceBernstein Index: MSCI World Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||||||||||
| Account Value | $ 26,075 | 20,399 | 18,055 | 20,254 | 16,632 | 14,523 | 12,680 | 12,663 | 10,240 | 9,928 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 18,370 | 15,554 | 14,321 | 16,472 | 14,812 | 13,142 | 11,693 | 11,803 | 10,127 | 9,803 | 10,000 |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 10,302 | 9,845 | 9,648 | 11,598 | 11,993 | 11,066 | 10,212 | 10,508 | 9,864 | 9,567 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 18,370 | 15,554 | 14,321 | 16,472 | 14,812 | 13,142 | 11,693 | 11,803 | 10,127 | 9,803 | 10,000 |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 10,302 | 9,845 | 9,648 | 11,598 | 11,993 | 11,066 | 10,212 | 10,508 | 9,864 | 9,567 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 18,370 | 15,554 | 14,321 | 16,472 | 14,812 | 13,142 | 11,693 | 11,803 | 10,127 | 9,803 | 10,000 |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 10,302 | 9,845 | 9,648 | 11,598 | 11,993 | 11,066 | 10,212 | 10,508 | 9,864 | 9,567 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 18,370 | 15,554 | 14,321 | 16,472 | 14,812 | 13,142 | 11,693 | 11,803 | 10,127 | 9,803 | 10,000 |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||||||||||
| Account Value | $ 10,302 | $ 9,845 | $ 9,648 | $ 11,598 | $ 11,993 | $ 11,066 | $ 10,212 | $ 10,508 | $ 9,864 | $ 9,567 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | |
| C000027570 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Advisor Class | ||
| C000027567 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A (with sales charges) | ||
| Average Annual Return, Percent | 9.95% | 5.13% | 4.17% |
| C000027569 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C | ||
| Average Annual Return, Percent | 12.94% | 5.25% | 3.84% |
| C000027573 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class I | ||
| Without Sales Load [Member] | C000027570 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 15.12% | 6.31% | 4.89% |
| Without Sales Load [Member] | C000027567 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 14.84% | 6.04% | 4.62% |
| Without Sales Load [Member] | C000027569 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 13.94% | 5.25% | 3.84% |
| Without Sales Load [Member] | C000027573 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 15.12% | 6.34% | 4.97% |
| AllianceBernstein Index: MSCI World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||
| Average Annual Return, Percent | 27.83% | 12.42% | 10.06% |
| AllianceBernstein Index: MSCI World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||
| Average Annual Return, Percent | 27.83% | 12.42% | 10.06% |
| AllianceBernstein Index: MSCI World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||
| Average Annual Return, Percent | 27.83% | 12.42% | 10.06% |
| AllianceBernstein Index: MSCI World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI World Index (net) | ||
| Average Annual Return, Percent | 27.83% | 12.42% | 10.06% |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 18.10% | 6.93% | 6.27% |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 4.64% | (1.42%) | 0.30% |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 18.10% | 6.93% | 6.27% |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 4.64% | (1.42%) | 0.30% |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 18.10% | 6.93% | 6.27% |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 4.64% | (1.42%) | 0.30% |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 18.10% | 6.93% | 6.27% |
| AllianceBernstein Index: Bloomberg Global Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | ||
| Average Annual Return, Percent | 4.64% | (1.42%) | 0.30% |
| Shareholder Report, Holdings (Details) | Nov. 30, 2024 |
| C000027570 | Vanguard S&P 500 ETF - FR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000027570 | U.S. Treasury Inflation Index, 0.500 - FR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| C000027570 | U.S. Treasury Inflation Index, 0.375 - FR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000027570 | U.S. Treasury Inflation Index, 0.375 - FR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000027570 | iShares Core MSCI Emerging Markets ETF - FR_46434G103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027570 | Vanguard Real Estate ETF - FR_922908553 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000027570 | Invesco S&P 500 Equal Weight ETF - FR_46137V357 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027570 | iShares MSCI Emerging Markets ex China ETF - FR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027570 | Mexico Government International Bond, 4.125 - FR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | Vanguard Global ex-U.S. Real Estate ETF - FR_922042676 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027570 | Country SummaryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.90% |
| C000027570 | Country SummaryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000027570 | Country SummaryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027570 | Country SummarySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027570 | Country SummaryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027570 | Country SummaryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | Country SummaryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027570 | Country SummarySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027570 | Country SummaryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027570 | Country SummaryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027570 | Country SummarySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000027570 | Country SummaryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027570 | Country SummaryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027570 | Country SummaryBelgium | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | Country Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.10% |
| C000027570 | 10918462 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027570 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.50% |
| C000027570 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.30% |
| C000027570 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| C000027570 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027570 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027570 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027570 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027570 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027570 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027570 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027570 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027570 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000027570 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21% |
| C000027570 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027567 | Vanguard S&P 500 ETF - FR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000027567 | U.S. Treasury Inflation Index, 0.500 - FR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| C000027567 | U.S. Treasury Inflation Index, 0.375 - FR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000027567 | U.S. Treasury Inflation Index, 0.375 - FR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000027567 | iShares Core MSCI Emerging Markets ETF - FR_46434G103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027567 | Vanguard Real Estate ETF - FR_922908553 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000027567 | Invesco S&P 500 Equal Weight ETF - FR_46137V357 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027567 | iShares MSCI Emerging Markets ex China ETF - FR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027567 | Mexico Government International Bond, 4.125 - FR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | Vanguard Global ex-U.S. Real Estate ETF - FR_922042676 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027567 | Country SummaryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.90% |
| C000027567 | Country SummaryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000027567 | Country SummaryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027567 | Country SummarySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027567 | Country SummaryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027567 | Country SummaryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | Country SummaryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027567 | Country SummarySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027567 | Country SummaryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027567 | Country SummaryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027567 | Country SummarySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000027567 | Country SummaryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | Country SummaryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | Country SummaryBelgium | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | Country Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.10% |
| C000027567 | 10918462 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027567 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.50% |
| C000027567 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.30% |
| C000027567 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| C000027567 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027567 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027567 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027567 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027567 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027567 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027567 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027567 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027567 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000027567 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21% |
| C000027567 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027569 | Vanguard S&P 500 ETF - FR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000027569 | U.S. Treasury Inflation Index, 0.500 - FR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| C000027569 | U.S. Treasury Inflation Index, 0.375 - FR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000027569 | U.S. Treasury Inflation Index, 0.375 - FR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000027569 | iShares Core MSCI Emerging Markets ETF - FR_46434G103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027569 | Vanguard Real Estate ETF - FR_922908553 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000027569 | Invesco S&P 500 Equal Weight ETF - FR_46137V357 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027569 | iShares MSCI Emerging Markets ex China ETF - FR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027569 | Mexico Government International Bond, 4.125 - FR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | Vanguard Global ex-U.S. Real Estate ETF - FR_922042676 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027569 | Country SummaryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.90% |
| C000027569 | Country SummaryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000027569 | Country SummaryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027569 | Country SummarySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027569 | Country SummaryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027569 | Country SummaryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | Country SummaryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027569 | Country SummarySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027569 | Country SummaryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027569 | Country SummaryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027569 | Country SummarySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000027569 | Country SummaryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | Country SummaryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | Country SummaryBelgium | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | Country Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.10% |
| C000027569 | 10918462 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027569 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.50% |
| C000027569 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.30% |
| C000027569 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| C000027569 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027569 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027569 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027569 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027569 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027569 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027569 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027569 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027569 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000027569 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21% |
| C000027569 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027573 | Vanguard S&P 500 ETF - FR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000027573 | U.S. Treasury Inflation Index, 0.500 - FR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| C000027573 | U.S. Treasury Inflation Index, 0.375 - FR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000027573 | U.S. Treasury Inflation Index, 0.375 - FR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000027573 | iShares Core MSCI Emerging Markets ETF - FR_46434G103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027573 | Vanguard Real Estate ETF - FR_922908553 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000027573 | Invesco S&P 500 Equal Weight ETF - FR_46137V357 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027573 | iShares MSCI Emerging Markets ex China ETF - FR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027573 | Mexico Government International Bond, 4.125 - FR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | Vanguard Global ex-U.S. Real Estate ETF - FR_922042676 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027573 | Country SummaryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.90% |
| C000027573 | Country SummaryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000027573 | Country SummaryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027573 | Country SummarySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027573 | Country SummaryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027573 | Country SummaryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | Country SummaryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027573 | Country SummarySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027573 | Country SummaryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027573 | Country SummaryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027573 | Country SummarySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000027573 | Country SummaryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | Country SummaryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | Country SummaryBelgium | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | Country Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.10% |
| C000027573 | 10918462 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000027573 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.50% |
| C000027573 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.30% |
| C000027573 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| C000027573 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027573 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027573 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027573 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027573 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027573 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027573 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027573 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027573 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000027573 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21% |
| C000027573 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
